Designing a Tractive System Active light(TSAL) circuit for an Electric Vehicle which does the following operations
1. The TSAL itself must have a red light, flashing continuously with a frequency between 2
Hz and 5 Hz and a duty cycle of 50%, active if and only if the LVS is active and the voltage
across DC-link capacitors exceeds half the nominal TS voltage
2. The TSAL itself must have a green light, continuously on, active if and only if the LVS is
active and ALL of the following conditions are true:
● All AIRs are opened.
● The pre-charge relay is opened.
● The voltage at the vehicle side of the AIRs inside the TSAC does not exceed 60 VDC
or 50 VAC RMS.
This schematic will include only the Green Light logic. We have to take proper care of High voltage and Low voltage isolation in this schematic because it will have to be implemented on the PCB as well.
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